74 entries under tough topic. ×

7
adamantine(adjective, determined, resolute, stubborn)
7
contrary(adjective, difficult, determined, awkward)
7
determined(adjective, firm, deliberate, usual)
7
rigid(adjective, mean, hard, firm)
7
unrelenting(adjective, mean, hard, firm)
6
unbending(adjective, mean, hard, determined)
6
wayward(adjective, difficult, awkward, obstinate)
5
contumacious(adjective, firm, determined, unreasonable)
5
hard(adjective, mean, harsh, determined)
5
resolute(adjective, determined, usual, regular)
4
balky(firm, unreasonable, grim, inflexible)
4
inexorable(adjective, mean, hard, determined)
4
persevering(adjective, firm, determined, unreasonable)
4
persistent(adjective, firm, determined, unreasonable)
4
relentless(adjective, mean, hard, determined)
4
uncooperative(adjective, mean, hard, difficult)
3
firm(adjective, mean, hard, determined)
3
fixed(adjective, mean, hard, firm)
3
hard-nosed(adjective, mean, hard, determined)
3
implacable(adjective, mean, hard, firm)
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APASmart Define. (2015). pigheaded thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/pigheaded/thesaurus/synonyms
ChicagoSmart Define. 2015. "pigheaded thesaurus" https://smartdefine.org/pigheaded/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, pigheaded thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/pigheaded/thesaurus/synonyms>.
MLASmart Define. "pigheaded thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/pigheaded/thesaurus/synonyms>